| 摘要 |
<p>The device (10) has a control element (12) moving a bolt (13) between a closing position in which the bolt is engaged in a closing partner, and an opening position retrieved from the closing partner. An electrical monitoring unit (14) executes an action after a time unit in which the bolt is provided in the closing position. The monitoring unit comprises a light unit (15), where action of the monitoring unit allows output of a light signal by the light unit after course of time unit. The monitoring unit comprises a loudspeaker, and an electric actuator unit moves the bolt.</p> |
